Origin

Aarkus and his people came to Earth-616 from another dimension to answer their true calling in life, which was to help Cosmic Cubes all over the Universe gain sentience. Aarkus was assigned to be the caretaker and a midwife of sorts to the Cosmic Cubes of Earth. Aarkus became distracted from his mission when World War II broke out, which he fought in as both a member of The Axis and The Allies.

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Corrupted by D'Spayre

Sometime later; Aarkus was assigned to protect a Cube, that unbeknownst to him, was being corrupted by Humanity's fear and despair. The Cube's corrupting powers began to have a dramatic effect on Aarkus and in the end he was overwhelmed by the demonic being called D'Spayre.

Return As Aarkus

When The Invaders were brought to the year 2008 by a Cosmic Cube, but apparently not the one that was corrupting Aarkus, Doctor Strange, The New Avengers, Paul Anselm and a few of The Invaders found Aarkus hiding with his Cube in an ancient sewer. With Echo‘s help, Doctor Strange took the Cosmic Cube from Aarkus; purified it and then used its power to banish D'Spayre from existence and by doing so restored Aarkus to his true form. He recently helped reunite the original members of the Invaders.